Sodium Cyanide → 1-Naphthalenecarbonitrile, 3,4-dihydro-6-methoxy-

HRID 280481

反応式

HRID 280481 の反応式
[Al+3].[Cl-].[Cl-].[Cl-].[C-:5]#[N:6].[Na+].[CH3:8][O:9][C:10]1[CH:11]=[C:12]2[C:17](=[CH:18][CH:19]=1)[C:16](=O)[CH2:15][CH2:14][CH2:13]2>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.[N+](C1C=CC=CC=1)([O-])=O>[CH3:8][O:9][C:10]1[CH:11]=[C:12]2[C:17](=[CH:18][CH:19]=1)[C:16]([C:5]#[N:6])=[CH:15][CH2:14][CH2:13]2

参加物

6

反応物 3

HCID 8929Sodium Cyanide2 回HCID 141126-Methoxy-alpha-tetralone3 回HCID 6451240Aluminum(III) Chloride2 回

生成物 1

HCID 30144661-Naphthalenecarbonitrile, 3,4-dihydro-6-methoxy-

試薬・触媒・溶媒 2

HCID 74236Tetrabutylammonium Bromide触媒2 回HCID 7416Nitrobenzene溶媒

実験手順

A mixture of 1.3 g of dry AlCl3, 0.64 g of dry NaCN, and 87 mg of tetrabutylammonium bromide (TBAB) in 8.7 ml of dry nitrobenzene (NB) was stirred for two hours under a nitrogen atmosphere. Then 1.53 g of 6-methoxytetralone (6-MT) were added to provide a reaction mixture containing the 6-MT, NaCN, and AlCl3 in a mol ratio of 1/1.5/1.1 and containing 5.6% of TBAB, based on the weight of 6-MT. The reaction mixture was stirred at 90° C. for 10 hours to form 6-methoxy-1-cyano-3,4-dihydronaphthalene (6-MCDN). After workup the VPC ratio of 6-MT/6-MCDN was determined to be 8/92. The process resulted in an 85% isolated yield of 6-MCDN.

後処理

  1. customto provide a reaction mixture
  2. stirringThe reaction mixture was stirred at 90° C. for 10 hours

出典と根拠

ORDレコード
ord-df20106b82b74b4592ec466c6d7cc949
出典データセット
uspto-grants-1986_05
特許番号
US04590012

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